Who funds Startups?

Geneally startups (small business) get funded by
Friends, family, and fools
Angel investors
Venture capital
Corporate partnerships
Grants: government, non-profits, SBIRs
Debt
Revenue: upfront contracts, committed buyer

Issues
$ vs. ownership

Cost of funding: $, control, restrictions
What critical milestones does the funding help achieve?
Funding vs. Revenue